210021101020102 has 16 divisors (see below), whose sum is σ = 320197017869424. Its totient is φ = 103288771548000.

The previous prime is 210021101020097. The next prime is 210021101020103. The reversal of 210021101020102 is 201020101120012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210021101020103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44111652 + ... + 48640312.

It is an arithmetic number, because the mean of its divisors is an integer number (20012313616839).

Almost surely, 2^{210021101020102} is an apocalyptic number.

210021101020102 is a deficient number, since it is larger than the sum of its proper divisors (110175916849322).

210021101020102 is a wasteful number, since it uses less digits than its factorization.

210021101020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4908855.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 210021101020102 its reverse (201020101120012), we get a palindrome (411041202140114).

The spelling of 210021101020102 in words is "two hundred ten trillion, twenty-one billion, one hundred one million, twenty thousand, one hundred two".