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BaseRepresentation
bin11011110010011010110100…
…000111001000111110000100
3121000201100120212221100210102
4123302122310013020332010
5112004310204412223022
61111531232200143232
734512345546224525
oct3362326407107604
9530640525840712
10122212021211012
1135a38910a04a27
1211859612767b18
13532670c660405
14222714438084c
15e1e036117a92
hex6f26b41c8f84

122212021211012 has 6 divisors (see below), whose sum is σ = 213871037119278. Its totient is φ = 61106010605504.

The previous prime is 122212021210973. The next prime is 122212021211017. The reversal of 122212021211012 is 210112120212221.

It can be written as a sum of positive squares in only one way, i.e., 81729266099776 + 40482755111236 = 9040424^2 + 6362606^2 .

It is not an unprimeable number, because it can be changed into a prime (122212021211017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15276502651373 + ... + 15276502651380.

It is an arithmetic number, because the mean of its divisors is an integer number (35645172853213).

Almost surely, 2122212021211012 is an apocalyptic number.

It is an amenable number.

122212021211012 is a deficient number, since it is larger than the sum of its proper divisors (91659015908266).

122212021211012 is a wasteful number, since it uses less digits than its factorization.

122212021211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30553005302757 (or 30553005302755 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 122212021211012 its reverse (210112120212221), we get a palindrome (332324141423233).

The spelling of 122212021211012 in words is "one hundred twenty-two trillion, two hundred twelve billion, twenty-one million, two hundred eleven thousand, twelve".