210021102201001 has 64 divisors (see below), whose sum is σ = 269797367863296. Its totient is φ = 159085009843200.

The previous prime is 210021102200977. The next prime is 210021102201067. The reversal of 210021102201001 is 100102201120012.

It is not a de Polignac number, because 210021102201001 - 2⁵ = 210021102200969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (210021102201901) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44998611 + ... + 49446103.

It is an arithmetic number, because the mean of its divisors is an integer number (4215583872864).

Almost surely, 2^{210021102201001} is an apocalyptic number.

It is an amenable number.

210021102201001 is a deficient number, since it is larger than the sum of its proper divisors (59776265662295).

210021102201001 is a wasteful number, since it uses less digits than its factorization.

210021102201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4447802.

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

Adding to 210021102201001 its reverse (100102201120012), we get a palindrome (310123303321013).

The spelling of 210021102201001 in words is "two hundred ten trillion, twenty-one billion, one hundred two million, two hundred one thousand, one".