121420214220 has 48 divisors (see below), whose sum is σ = 340165673568. Its totient is φ = 32360716800.

The previous prime is 121420214213. The next prime is 121420214221. The reversal of 121420214220 is 22412024121.

It is a super-3 number, since 3×121420214220³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (121420214221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 453759 + ... + 669878.

It is an arithmetic number, because the mean of its divisors is an integer number (7086784866).

Almost surely, 2^121420214220 is an apocalyptic number.

121420214220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121420214220 is an abundant number, since it is smaller than the sum of its proper divisors (218745459348).

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

121420214220 is a wasteful number, since it uses less digits than its factorization.

121420214220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125450 (or 1125448 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 121420214220 its reverse (22412024121), we get a palindrome (143832238341).

The spelling of 121420214220 in words is "one hundred twenty-one billion, four hundred twenty million, two hundred fourteen thousand, two hundred twenty".