20211001002122 has 64 divisors (see below), whose sum is σ = 35974342010880. Its totient is φ = 8333429299200.

The previous prime is 20211001002109. The next prime is 20211001002139. The reversal of 20211001002122 is 22120010011202.

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

It is a junction number, because it is equal to n+sod(n) for n = 20211001002097 and 20211001002106.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 252039698 + ... + 252119874.

It is an arithmetic number, because the mean of its divisors is an integer number (562099093920).

Almost surely, 2^{20211001002122} is an apocalyptic number.

20211001002122 is a deficient number, since it is larger than the sum of its proper divisors (15763341008758).

20211001002122 is a wasteful number, since it uses less digits than its factorization.

20211001002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83607.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20211001002122 its reverse (22120010011202), we get a palindrome (42331011013324).

The spelling of 20211001002122 in words is "twenty trillion, two hundred eleven billion, one million, two thousand, one hundred twenty-two".