121769109822 has 16 divisors (see below), whose sum is σ = 248133281040. Its totient is φ = 39823859712.

The previous prime is 121769109799. The next prime is 121769109859. The reversal of 121769109822 is 228901967121.

It is a happy number.

It is a super-2 number, since 2×121769109822² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191460547 + ... + 191461182.

It is an arithmetic number, because the mean of its divisors is an integer number (15508330065).

Almost surely, 2^121769109822 is an apocalyptic number.

121769109822 is an abundant number, since it is smaller than the sum of its proper divisors (126364171218).

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

121769109822 is a wasteful number, since it uses less digits than its factorization.

121769109822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382921787.

The product of its (nonzero) digits is 217728, while the sum is 48.

The spelling of 121769109822 in words is "one hundred twenty-one billion, seven hundred sixty-nine million, one hundred nine thousand, eight hundred twenty-two".