201021121111202 has 16 divisors (see below), whose sum is σ = 356490658128960. Its totient is φ = 83181153563088.

The previous prime is 201021121111201. The next prime is 201021121111247. The reversal of 201021121111202 is 202111121120102.

It is a super-2 number, since 2×201021121111202² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201021121111201) 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, 247562956628 + ... + 247562957439.

It is an arithmetic number, because the mean of its divisors is an integer number (22280666133060).

Almost surely, 2^{201021121111202} is an apocalyptic number.

201021121111202 is a deficient number, since it is larger than the sum of its proper divisors (155469537017758).

201021121111202 is a wasteful number, since it uses less digits than its factorization.

201021121111202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495125914105.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 201021121111202 its reverse (202111121120102), we get a palindrome (403132242231304).

The spelling of 201021121111202 in words is "two hundred one trillion, twenty-one billion, one hundred twenty-one million, one hundred eleven thousand, two hundred two".