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2111303032212 = 22311101315789457
BaseRepresentation
bin11110101110010011011…
…101111001110110010100
321110211122100010201111110
4132232103131321312110
5234042422034012322
64253530315135020
7305352025445163
oct36562335716624
97424570121443
102111303032212
1174444257a320
122a1227144470
131241309bb44a
147428ab433da
1539dbe6b3c0c
hex1eb93779d94

2111303032212 has 48 divisors (see below), whose sum is σ = 5379531498432. Its totient is φ = 639157178880.

The previous prime is 2111303032211. The next prime is 2111303032219. The reversal of 2111303032212 is 2122303031112.

It is a super-2 number, since 2×21113030322122 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111303032211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7761013 + ... + 8028444.

It is an arithmetic number, because the mean of its divisors is an integer number (112073572884).

Almost surely, 22111303032212 is an apocalyptic number.

2111303032212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2111303032212 is an abundant number, since it is smaller than the sum of its proper divisors (3268228466220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2111303032212 is a wasteful number, since it uses less digits than its factorization.

2111303032212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15790488 (or 15790486 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2111303032212 its reverse (2122303031112), we get a palindrome (4233606063324).

The spelling of 2111303032212 in words is "two trillion, one hundred eleven billion, three hundred three million, thirty-two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 1013 2026 3039 4052 6078 11143 12156 22286 33429 44572 66858 133716 15789457 31578914 47368371 63157828 94736742 173684027 189473484 347368054 521052081 694736108 1042104162 2084208324 15994719941 31989439882 47984159823 63978879764 95968319646 175941919351 191936639292 351883838702 527825758053 703767677404 1055651516106 2111303032212