201202000021 has 16 divisors (see below), whose sum is σ = 220686985728. Its totient is φ = 181917660400.

The previous prime is 201202000019. The next prime is 201202000037. The reversal of 201202000021 is 120000202102.

It is a cyclic number.

It is not a de Polignac number, because 201202000021 - 2¹ = 201202000019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201201999971 and 201202000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201202000061) 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, 2413566 + ... + 2495536.

It is an arithmetic number, because the mean of its divisors is an integer number (13792936608).

Almost surely, 2^201202000021 is an apocalyptic number.

It is an amenable number.

201202000021 is a deficient number, since it is larger than the sum of its proper divisors (19484985707).

201202000021 is a wasteful number, since it uses less digits than its factorization.

201202000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83192.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 201202000021 its reverse (120000202102), we get a palindrome (321202202123).

The spelling of 201202000021 in words is "two hundred one billion, two hundred two million, twenty-one", and thus it is an aban number.