1200221201022 has 16 divisors (see below), whose sum is σ = 2456266644480. Its totient is φ = 390769693272.

The previous prime is 1200221201021. The next prime is 1200221201027. The reversal of 1200221201022 is 2201021220021.

It is a junction number, because it is equal to n+sod(n) for n = 1200221200992 and 1200221201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200221201021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2326009822 + ... + 2326010337.

It is an arithmetic number, because the mean of its divisors is an integer number (153516665280).

Almost surely, 2^{1200221201022} is an apocalyptic number.

1200221201022 is an abundant number, since it is smaller than the sum of its proper divisors (1256045443458).

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

1200221201022 is a wasteful number, since it uses less digits than its factorization.

1200221201022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4652020207.

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

Adding to 1200221201022 its reverse (2201021220021), we get a palindrome (3401242421043).

The spelling of 1200221201022 in words is "one trillion, two hundred billion, two hundred twenty-one million, two hundred one thousand, twenty-two".