1200221111022 has 32 divisors (see below), whose sum is σ = 2478939669024. Its totient is φ = 387110275200.

The previous prime is 1200221111017. The next prime is 1200221111051. The reversal of 1200221111022 is 2201111220021.

It is a junction number, because it is equal to n+sod(n) for n = 1200221110992 and 1200221111010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14894629 + ... + 14974992.

It is an arithmetic number, because the mean of its divisors is an integer number (77466864657).

Almost surely, 2^{1200221111022} is an apocalyptic number.

1200221111022 is an abundant number, since it is smaller than the sum of its proper divisors (1278718558002).

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

1200221111022 is a wasteful number, since it uses less digits than its factorization.

1200221111022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29869844.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1200221111022 its reverse (2201111220021), we get a palindrome (3401332331043).

The spelling of 1200221111022 in words is "one trillion, two hundred billion, two hundred twenty-one million, one hundred eleven thousand, twenty-two".