121032223400 has 96 divisors (see below), whose sum is σ = 307261360800. Its totient is φ = 43971628800.

The previous prime is 121032223337. The next prime is 121032223423. The reversal of 121032223400 is 4322230121.

It is a super-2 number, since 2×121032223400² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2446106 + ... + 2495094.

It is an arithmetic number, because the mean of its divisors is an integer number (3200639175).

Almost surely, 2^121032223400 is an apocalyptic number.

121032223400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121032223400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153630680400).

121032223400 is an abundant number, since it is smaller than the sum of its proper divisors (186229137400).

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

121032223400 is a wasteful number, since it uses less digits than its factorization.

121032223400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50139 (or 50130 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 121032223400 its reverse (4322230121), we get a palindrome (125354453521).

The spelling of 121032223400 in words is "one hundred twenty-one billion, thirty-two million, two hundred twenty-three thousand, four hundred".