121201022012 has 48 divisors (see below), whose sum is σ = 244485685248. Its totient is φ = 51497389440.

The previous prime is 121201022009. The next prime is 121201022027. The reversal of 121201022012 is 210220102121.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5276312 + ... + 5299232.

It is an arithmetic number, because the mean of its divisors is an integer number (5093451776).

Almost surely, 2^121201022012 is an apocalyptic number.

It is an amenable number.

121201022012 is an abundant number, since it is smaller than the sum of its proper divisors (123284663236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121201022012 is a wasteful number, since it uses less digits than its factorization.

121201022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24546 (or 24544 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121201022012 its reverse (210220102121), we get a palindrome (331421124133).

The spelling of 121201022012 in words is "one hundred twenty-one billion, two hundred one million, twenty-two thousand, twelve".