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22002101331 = 377019149269
BaseRepresentation
bin10100011111011011…
…010110110001010011
32002210100211112221220
4110133123112301103
5330030014220311
614035125220123
71406142530010
oct243733266123
962710745856
1022002101331
119370681421
124320561643
1320c8409592
1410ca16a707
1588b8e6206
hex51f6d6c53

22002101331 has 16 divisors (see below), whose sum is σ = 33532012800. Its totient is φ = 12570753888.

The previous prime is 22002101249. The next prime is 22002101353. The reversal of 22002101331 is 13310120022.

It is not a de Polignac number, because 22002101331 - 29 = 22002100819 is a prime.

It is a super-2 number, since 2×220021013312 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22002101331.

It is not an unprimeable number, because it can be changed into a prime (22002101831) 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, 72765 + ... + 222033.

It is an arithmetic number, because the mean of its divisors is an integer number (2095750800).

Almost surely, 222002101331 is an apocalyptic number.

22002101331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22002101331 is a deficient number, since it is larger than the sum of its proper divisors (11529911469).

22002101331 is a wasteful number, since it uses less digits than its factorization.

22002101331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156298.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 22002101331 its reverse (13310120022), we get a palindrome (35312221353).

The spelling of 22002101331 in words is "twenty-two billion, two million, one hundred one thousand, three hundred thirty-one".

Divisors: 1 3 7 21 7019 21057 49133 147399 149269 447807 1044883 3134649 1047719111 3143157333 7334033777 22002101331