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1220012201210 = 251111091020011
BaseRepresentation
bin10001110000001110011…
…001001101010011111010
311022122001202012021010212
4101300032121031103322
5124442041110414320
62332244343311122
7154100016414665
oct21601631152372
94278052167125
101220012201210
1143044a09a060
1217854374b4a2
138b07b67509a
14430982a86dc
1521b06a669c5
hex11c0e64d4fa

1220012201210 has 16 divisors (see below), whose sum is σ = 2395660322592. Its totient is φ = 443640800400.

The previous prime is 1220012201171. The next prime is 1220012201249. The reversal of 1220012201210 is 121022100221.

It is an interprime number because it is at equal distance from previous prime (1220012201171) and next prime (1220012201249).

It is a super-2 number, since 2×12200122012102 (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5545509896 + ... + 5545510115.

It is an arithmetic number, because the mean of its divisors is an integer number (149728770162).

Almost surely, 21220012201210 is an apocalyptic number.

1220012201210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220012201210 is a deficient number, since it is larger than the sum of its proper divisors (1175648121382).

1220012201210 is a wasteful number, since it uses less digits than its factorization.

1220012201210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11091020029.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1220012201210 its reverse (121022100221), we get a palindrome (1341034301431).

The spelling of 1220012201210 in words is "one trillion, two hundred twenty billion, twelve million, two hundred one thousand, two hundred ten".

Divisors: 1 2 5 10 11 22 55 110 11091020011 22182040022 55455100055 110910200110 122001220121 244002440242 610006100605 1220012201210