220201010102121 has 16 divisors (see below), whose sum is σ = 303075042455040. Its totient is φ = 142063909464960.

The previous prime is 220201010102119. The next prime is 220201010102219. The reversal of 220201010102121 is 121201010102022.

It is not a de Polignac number, because 220201010102121 - 2¹ = 220201010102119 is a prime.

It is a super-4 number, since 4×220201010102121⁴ (a number of 58 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220201010102121.

It is not an unprimeable number, because it can be changed into a prime (220201010104121) 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, 127275 + ... + 20986143.

It is an arithmetic number, because the mean of its divisors is an integer number (18942190153440).

Almost surely, 2^{220201010102121} is an apocalyptic number.

It is an amenable number.

220201010102121 is a deficient number, since it is larger than the sum of its proper divisors (82874032352919).

220201010102121 is a wasteful number, since it uses less digits than its factorization.

220201010102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20972416.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 220201010102121 its reverse (121201010102022), we get a palindrome (341402020204143).

Subtracting from 220201010102121 its reverse (121201010102022), we obtain a palindrome (99000000000099).

The spelling of 220201010102121 in words is "two hundred twenty trillion, two hundred one billion, ten million, one hundred two thousand, one hundred twenty-one".