121281622210 has 64 divisors (see below), whose sum is σ = 251868165120. Its totient is φ = 41187706560.

The previous prime is 121281622199. The next prime is 121281622223. The reversal of 121281622210 is 12226182121.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5003901 + ... + 5028079.

It is an arithmetic number, because the mean of its divisors is an integer number (3935440080).

Almost surely, 2^121281622210 is an apocalyptic number.

121281622210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121281622210 is an abundant number, since it is smaller than the sum of its proper divisors (130586542910).

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

121281622210 is a wasteful number, since it uses less digits than its factorization.

121281622210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24871.

The product of its (nonzero) digits is 1536, while the sum is 28.

The spelling of 121281622210 in words is "one hundred twenty-one billion, two hundred eighty-one million, six hundred twenty-two thousand, two hundred ten".