20000002211021 has 16 divisors (see below), whose sum is σ = 23323939632000. Its totient is φ = 17142622447104.

The previous prime is 20000002211009. The next prime is 20000002211041. The reversal of 20000002211021 is 12011220000002.

It is a happy number.

It is not a de Polignac number, because 20000002211021 - 2³⁸ = 19725124304077 is a prime.

It is a super-2 number, since 2×20000002211021² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20000002210993 and 20000002211011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000002211041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27253850 + ... + 27978068.

It is an arithmetic number, because the mean of its divisors is an integer number (1457746227000).

Almost surely, 2^{20000002211021} is an apocalyptic number.

It is an amenable number.

20000002211021 is a deficient number, since it is larger than the sum of its proper divisors (3323937420979).

20000002211021 is an frugal number, since it uses more digits than its factorization.

20000002211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804753 (or 804739 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20000002211021 its reverse (12011220000002), we get a palindrome (32011222211023).

The spelling of 20000002211021 in words is "twenty trillion, two million, two hundred eleven thousand, twenty-one".