202021210120101 has 16 divisors (see below), whose sum is σ = 295866303152640. Its totient is φ = 122044850048880.

The previous prime is 202021210120087. The next prime is 202021210120109. The reversal of 202021210120101 is 101021012120202.

It is not a de Polignac number, because 202021210120101 - 2⁷ = 202021210119973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202021210120109) 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, 77048515135 + ... + 77048517756.

It is an arithmetic number, because the mean of its divisors is an integer number (18491643947040).

Almost surely, 2^{202021210120101} is an apocalyptic number.

It is an amenable number.

202021210120101 is a deficient number, since it is larger than the sum of its proper divisors (93845093032539).

202021210120101 is a wasteful number, since it uses less digits than its factorization.

202021210120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154097032936.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 202021210120101 its reverse (101021012120202), we get a palindrome (303042222240303).

The spelling of 202021210120101 in words is "two hundred two trillion, twenty-one billion, two hundred ten million, one hundred twenty thousand, one hundred one".