210021111101102 has 16 divisors (see below), whose sum is σ = 360163908224640. Its totient is φ = 89977118173368.

The previous prime is 210021111101101. The next prime is 210021111101107. The reversal of 210021111101102 is 201101111120012.

It is a super-2 number, since 2×210021111101102² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210021111101101) 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, 2660745908 + ... + 2660824839.

It is an arithmetic number, because the mean of its divisors is an integer number (22510244264040).

Almost surely, 2^{210021111101102} is an apocalyptic number.

210021111101102 is a deficient number, since it is larger than the sum of its proper divisors (150142797123538).

210021111101102 is a wasteful number, since it uses less digits than its factorization.

210021111101102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5321573575.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 210021111101102 its reverse (201101111120012), we get a palindrome (411122222221114).

The spelling of 210021111101102 in words is "two hundred ten trillion, twenty-one billion, one hundred eleven million, one hundred one thousand, one hundred two".