122221211022120 has 128 divisors (see below), whose sum is σ = 419046444829440. Its totient is φ = 27936123955200.

The previous prime is 122221211022067. The next prime is 122221211022137. The reversal of 122221211022120 is 21220112122221.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 238550220 + ... + 239062020.

It is an arithmetic number, because the mean of its divisors is an integer number (3273800350230).

Almost surely, 2^{122221211022120} is an apocalyptic number.

122221211022120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122221211022120 is an abundant number, since it is smaller than the sum of its proper divisors (296825233807320).

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

122221211022120 is a wasteful number, since it uses less digits than its factorization.

122221211022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796115 (or 796111 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 122221211022120 its reverse (21220112122221), we get a palindrome (143441323144341).

The spelling of 122221211022120 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, two hundred eleven million, twenty-two thousand, one hundred twenty".