202001021121002 has 16 divisors (see below), whose sum is σ = 307274049157320. Its totient is φ = 99582767741952.

The previous prime is 202001021120953. The next prime is 202001021121043. The reversal of 202001021121002 is 200121120100202.

It can be written as a sum of positive squares in 4 ways, for example, as 176370909981841 + 25630111139161 = 13280471^2 + 5062619^2 .

It is a super-2 number, since 2×202001021121002² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1607355293 + ... + 1607480960.

Almost surely, 2^{202001021121002} is an apocalyptic number.

202001021121002 is a deficient number, since it is larger than the sum of its proper divisors (105273028036318).

202001021121002 is a wasteful number, since it uses less digits than its factorization.

202001021121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3214836697.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202001021121002 its reverse (200121120100202), we get a palindrome (402122141221204).

The spelling of 202001021121002 in words is "two hundred two trillion, one billion, twenty-one million, one hundred twenty-one thousand, two".