21012010201002 has 16 divisors (see below), whose sum is σ = 42457257726912. Its totient is φ = 6931797179520.

The previous prime is 21012010200991. The next prime is 21012010201031. The reversal of 21012010201002 is 20010201021012.

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, 18051554574 + ... + 18051555737.

It is an arithmetic number, because the mean of its divisors is an integer number (2653578607932).

Almost surely, 2^{21012010201002} is an apocalyptic number.

21012010201002 is an abundant number, since it is smaller than the sum of its proper divisors (21445247525910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21012010201002 is a wasteful number, since it uses less digits than its factorization.

21012010201002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36103110413.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21012010201002 its reverse (20010201021012), we get a palindrome (41022211222014).

The spelling of 21012010201002 in words is "twenty-one trillion, twelve billion, ten million, two hundred one thousand, two".