220100121101001 has 16 divisors (see below), whose sum is σ = 293526368898048. Its totient is φ = 146703645488400.

The previous prime is 220100121100991. The next prime is 220100121101017. The reversal of 220100121101001 is 100101121001022.

It is not a de Polignac number, because 220100121101001 - 2²² = 220100116906697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220100121101071) 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, 529807996 + ... + 530223266.

It is an arithmetic number, because the mean of its divisors is an integer number (18345398056128).

Almost surely, 2^{220100121101001} is an apocalyptic number.

It is an amenable number.

220100121101001 is a deficient number, since it is larger than the sum of its proper divisors (73426247797047).

220100121101001 is a wasteful number, since it uses less digits than its factorization.

220100121101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450692.

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

Adding to 220100121101001 its reverse (100101121001022), we get a palindrome (320201242102023).

The spelling of 220100121101001 in words is "two hundred twenty trillion, one hundred billion, one hundred twenty-one million, one hundred one thousand, one".