121070220216 has 64 divisors (see below), whose sum is σ = 334169781120. Its totient is φ = 36245915520.

The previous prime is 121070220209. The next prime is 121070220221. The reversal of 121070220216 is 612022070121.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 2740735 + ... + 2784558.

It is an arithmetic number, because the mean of its divisors is an integer number (5221402830).

Almost surely, 2^121070220216 is an apocalyptic number.

It is an amenable number.

121070220216 is an abundant number, since it is smaller than the sum of its proper divisors (213099560904).

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

121070220216 is a wasteful number, since it uses less digits than its factorization.

121070220216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5525396 (or 5525392 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

Adding to 121070220216 its reverse (612022070121), we get a palindrome (733092290337).

The spelling of 121070220216 in words is "one hundred twenty-one billion, seventy million, two hundred twenty thousand, two hundred sixteen".