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122211112102 = 261105556051
BaseRepresentation
bin111000111010001011…
…0011001010010100110
3102200110002202202002021
41301310112121102212
54000242021041402
6132050520133354
711554335212242
oct1616426312246
9380402682067
10122211112102
1147913a943a2
121b82830725a
13b6a8309821
145cb4c77422
1532a4169d37
hex1c745994a6

122211112102 has 4 divisors (see below), whose sum is σ = 183316668156. Its totient is φ = 61105556050.

The previous prime is 122211112039. The next prime is 122211112103. The reversal of 122211112102 is 201211112221.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1222111121022 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122211112103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30552778024 + ... + 30552778027.

It is an arithmetic number, because the mean of its divisors is an integer number (45829167039).

Almost surely, 2122211112102 is an apocalyptic number.

122211112102 is a deficient number, since it is larger than the sum of its proper divisors (61105556054).

122211112102 is an equidigital number, since it uses as much as digits as its factorization.

122211112102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61105556053.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 122211112102 its reverse (201211112221), we get a palindrome (323422224323).

The spelling of 122211112102 in words is "one hundred twenty-two billion, two hundred eleven million, one hundred twelve thousand, one hundred two".

Divisors: 1 2 61105556051 122211112102