121120222111212 has 96 divisors (see below), whose sum is σ = 286810129365760. Its totient is φ = 39778146973440.

The previous prime is 121120222111111. The next prime is 121120222111219. The reversal of 121120222111212 is 212111222021121.

It is a super-2 number, since 2×121120222111212² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121120222111219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3476153463 + ... + 3476188305.

Almost surely, 2^{121120222111212} is an apocalyptic number.

121120222111212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121120222111212 is an abundant number, since it is smaller than the sum of its proper divisors (165689907254548).

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

121120222111212 is a wasteful number, since it uses less digits than its factorization.

121120222111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49823 (or 49821 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 121120222111212 its reverse (212111222021121), we get a palindrome (333231444132333).

Subtracting 121120222111212 from its reverse (212111222021121), we obtain a palindrome (90990999909909).

The spelling of 121120222111212 in words is "one hundred twenty-one trillion, one hundred twenty billion, two hundred twenty-two million, one hundred eleven thousand, two hundred twelve".