1202112201021 has 48 divisors (see below), whose sum is σ = 1748013792000. Its totient is φ = 734249594880.

The previous prime is 1202112200921. The next prime is 1202112201049. The reversal of 1202112201021 is 1201022112021.

It is not a de Polignac number, because 1202112201021 - 2¹³ = 1202112192829 is a prime.

It is a super-2 number, since 2×1202112201021² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202112201061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16207980 + ... + 16281978.

It is an arithmetic number, because the mean of its divisors is an integer number (36416954000).

Almost surely, 2^{1202112201021} is an apocalyptic number.

It is an amenable number.

1202112201021 is a deficient number, since it is larger than the sum of its proper divisors (545901590979).

1202112201021 is a wasteful number, since it uses less digits than its factorization.

1202112201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74534 (or 74517 counting only the distinct ones).

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

Adding to 1202112201021 its reverse (1201022112021), we get a palindrome (2403134313042).

It can be divided in two parts, 120211 and 2201021, that added together give a palindrome (2321232).

The spelling of 1202112201021 in words is "one trillion, two hundred two billion, one hundred twelve million, two hundred one thousand, twenty-one".