121022201010 has 128 divisors (see below), whose sum is σ = 297764273664. Its totient is φ = 31472271360.

The previous prime is 121022200987. The next prime is 121022201149. The reversal of 121022201010 is 10102220121.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 93308682 + ... + 93309978.

It is an arithmetic number, because the mean of its divisors is an integer number (2326283388).

Almost surely, 2^121022201010 is an apocalyptic number.

121022201010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121022201010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148882136832).

121022201010 is an abundant number, since it is smaller than the sum of its proper divisors (176742072654).

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

121022201010 is a wasteful number, since it uses less digits than its factorization.

121022201010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121022201010 its reverse (10102220121), we get a palindrome (131124421131).

The spelling of 121022201010 in words is "one hundred twenty-one billion, twenty-two million, two hundred one thousand, ten".