121001221123202 has 16 divisors (see below), whose sum is σ = 207481344251712. Its totient is φ = 51844996328400.

The previous prime is 121001221123199. The next prime is 121001221123247. The reversal of 121001221123202 is 202321122100121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1055762924 + ... + 1055877527.

It is an arithmetic number, because the mean of its divisors is an integer number (12967584015732).

Almost surely, 2^{121001221123202} is an apocalyptic number.

121001221123202 is a deficient number, since it is larger than the sum of its proper divisors (86480123128510).

121001221123202 is a wasteful number, since it uses less digits than its factorization.

121001221123202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111644553.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 121001221123202 its reverse (202321122100121), we get a palindrome (323322343223323).

The spelling of 121001221123202 in words is "one hundred twenty-one trillion, one billion, two hundred twenty-one million, one hundred twenty-three thousand, two hundred two".