121102211022012 has 144 divisors (see below), whose sum is σ = 346527653472000. Its totient is φ = 35339357894400.

The previous prime is 121102211021993. The next prime is 121102211022053. The reversal of 121102211022012 is 210220112201121.

121102211022012 is a `hidden beast` number, since 1 + 211 + 0 + 221 + 1 + 0 + 220 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48875137 + ... + 51293112.

It is an arithmetic number, because the mean of its divisors is an integer number (2406442038000).

Almost surely, 2^{121102211022012} is an apocalyptic number.

121102211022012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121102211022012 is an abundant number, since it is smaller than the sum of its proper divisors (225425442449988).

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

121102211022012 is a wasteful number, since it uses less digits than its factorization.

121102211022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100168384 (or 100168379 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121102211022012 its reverse (210220112201121), we get a palindrome (331322323223133).

The spelling of 121102211022012 in words is "one hundred twenty-one trillion, one hundred two billion, two hundred eleven million, twenty-two thousand, twelve".