20102200121001 has 16 divisors (see below), whose sum is σ = 27527680847744. Its totient is φ = 13039102116864.

The previous prime is 20102200120997. The next prime is 20102200121011. The reversal of 20102200121001 is 10012100220102.

It is not a de Polignac number, because 20102200121001 - 2² = 20102200120997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20102200121011) 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, 8139036 + ... + 10317378.

It is an arithmetic number, because the mean of its divisors is an integer number (1720480052984).

Almost surely, 2^{20102200121001} is an apocalyptic number.

It is an amenable number.

20102200121001 is a deficient number, since it is larger than the sum of its proper divisors (7425480726743).

20102200121001 is a wasteful number, since it uses less digits than its factorization.

20102200121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261520.

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

Adding to 20102200121001 its reverse (10012100220102), we get a palindrome (30114300341103).

The spelling of 20102200121001 in words is "twenty trillion, one hundred two billion, two hundred million, one hundred twenty-one thousand, one".