20210221001210 has 64 divisors (see below), whose sum is σ = 36894031372800. Its totient is φ = 7970500541952.

The previous prime is 20210221001153. The next prime is 20210221001213. The reversal of 20210221001210 is 1210012201202.

It is not an unprimeable number, because it can be changed into a prime (20210221001213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116947487 + ... + 117120173.

It is an arithmetic number, because the mean of its divisors is an integer number (576469240200).

Almost surely, 2^{20210221001210} is an apocalyptic number.

20210221001210 is a deficient number, since it is larger than the sum of its proper divisors (16683810371590).

20210221001210 is a wasteful number, since it uses less digits than its factorization.

20210221001210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173415.

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

Adding to 20210221001210 its reverse (1210012201202), we get a palindrome (21420233202412).

The spelling of 20210221001210 in words is "twenty trillion, two hundred ten billion, two hundred twenty-one million, one thousand, two hundred ten".