211020021010 has 32 divisors (see below), whose sum is σ = 381369491712. Its totient is φ = 84067502400.

The previous prime is 211020020999. The next prime is 211020021011. The reversal of 211020021010 is 10120020112.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (211020021011) 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, 7051339 + ... + 7081201.

It is an arithmetic number, because the mean of its divisors is an integer number (11917796616).

Almost surely, 2^211020021010 is an apocalyptic number.

211020021010 is a deficient number, since it is larger than the sum of its proper divisors (170349470702).

211020021010 is a wasteful number, since it uses less digits than its factorization.

211020021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32698.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 211020021010 its reverse (10120020112), we get a palindrome (221140041122).

The spelling of 211020021010 in words is "two hundred eleven billion, twenty million, twenty-one thousand, ten".