121101201002 has 4 divisors (see below), whose sum is σ = 181651801506. Its totient is φ = 60550600500.

The previous prime is 121101200993. The next prime is 121101201031. The reversal of 121101201002 is 200102101121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200102101121 = 13 ⋅15392469317.

It can be written as a sum of positive squares in only one way, i.e., 72512256961 + 48588944041 = 269281^2 + 220429^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30275300249 + ... + 30275300252.

Almost surely, 2^121101201002 is an apocalyptic number.

121101201002 is a deficient number, since it is larger than the sum of its proper divisors (60550600504).

121101201002 is an equidigital number, since it uses as much as digits as its factorization.

121101201002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60550600503.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121101201002 its reverse (200102101121), we get a palindrome (321203302123).

The spelling of 121101201002 in words is "one hundred twenty-one billion, one hundred one million, two hundred one thousand, two".