20211120101001 has 16 divisors (see below), whose sum is σ = 27130490524800. Its totient is φ = 13382924674560.

The previous prime is 20211120100987. The next prime is 20211120101077. The reversal of 20211120101001 is 10010102111202.

It is not a de Polignac number, because 20211120101001 - 2²² = 20211115906697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20211120101101) 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, 7095156 + ... + 9526986.

It is an arithmetic number, because the mean of its divisors is an integer number (1695655657800).

Almost surely, 2^{20211120101001} is an apocalyptic number.

It is an amenable number.

20211120101001 is a deficient number, since it is larger than the sum of its proper divisors (6919370423799).

20211120101001 is a wasteful number, since it uses less digits than its factorization.

20211120101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2450576.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20211120101001 its reverse (10010102111202), we get a palindrome (30221222212203).

The spelling of 20211120101001 in words is "twenty trillion, two hundred eleven billion, one hundred twenty million, one hundred one thousand, one".