20102101220001 has 16 divisors (see below), whose sum is σ = 29146448830464. Its totient is φ = 12272188978944.

The previous prime is 20102101219969. The next prime is 20102101220081. The reversal of 20102101220001 is 10002210120102.

It is not a de Polignac number, because 20102101220001 - 2⁵ = 20102101219969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20102101220081) 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, 5326469025 + ... + 5326472798.

It is an arithmetic number, because the mean of its divisors is an integer number (1821653051904).

Almost surely, 2^{20102101220001} is an apocalyptic number.

It is an amenable number.

20102101220001 is a deficient number, since it is larger than the sum of its proper divisors (9044347610463).

20102101220001 is a wasteful number, since it uses less digits than its factorization.

20102101220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10652941880.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20102101220001 its reverse (10002210120102), we get a palindrome (30104311340103).

The spelling of 20102101220001 in words is "twenty trillion, one hundred two billion, one hundred one million, two hundred twenty thousand, one".