220201201002121 has 4 divisors (see below), whose sum is σ = 220240250697600. Its totient is φ = 220162151306644.

The previous prime is 220201201002119. The next prime is 220201201002137. The reversal of 220201201002121 is 121200102102022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220201201002121 - 2¹ = 220201201002119 is a prime.

It is a super-3 number, since 3×220201201002121³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220201201002095 and 220201201002104.

It is not an unprimeable number, because it can be changed into a prime (220201201002161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19524839281 + ... + 19524850558.

It is an arithmetic number, because the mean of its divisors is an integer number (55060062674400).

Almost surely, 2^{220201201002121} is an apocalyptic number.

It is an amenable number.

220201201002121 is a deficient number, since it is larger than the sum of its proper divisors (39049695479).

220201201002121 is an equidigital number, since it uses as much as digits as its factorization.

220201201002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39049695478.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220201201002121 its reverse (121200102102022), we get a palindrome (341401303104143).

The spelling of 220201201002121 in words is "two hundred twenty trillion, two hundred one billion, two hundred one million, two thousand, one hundred twenty-one".