1200221020122 has 64 divisors (see below), whose sum is σ = 2523852656640. Its totient is φ = 379771977024.

The previous prime is 1200221020111. The next prime is 1200221020133. The reversal of 1200221020122 is 2210201220021.

It is an interprime number because it is at equal distance from previous prime (1200221020111) and next prime (1200221020133).

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, 53065288 + ... + 53087900.

It is an arithmetic number, because the mean of its divisors is an integer number (39435197760).

Almost surely, 2^{1200221020122} is an apocalyptic number.

1200221020122 is an abundant number, since it is smaller than the sum of its proper divisors (1323631636518).

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

1200221020122 is a wasteful number, since it uses less digits than its factorization.

1200221020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25547.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1200221020122 its reverse (2210201220021), we get a palindrome (3410422240143).

The spelling of 1200221020122 in words is "one trillion, two hundred billion, two hundred twenty-one million, twenty thousand, one hundred twenty-two".