121210221101120 has 28 divisors (see below), whose sum is σ = 288631838997804. Its totient is φ = 48484088440320.

The previous prime is 121210221101107. The next prime is 121210221101149. The reversal of 121210221101120 is 21101122012121.

It can be written as a sum of positive squares in 2 ways, for example, as 92539936373824 + 28670284727296 = 9619768^2 + 5354464^2 .

It is a super-2 number, since 2×121210221101120² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189390970151 + ... + 189390970790.

Almost surely, 2^{121210221101120} is an apocalyptic number.

121210221101120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121210221101120 is an abundant number, since it is smaller than the sum of its proper divisors (167421617896684).

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

121210221101120 is an equidigital number, since it uses as much as digits as its factorization.

121210221101120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378781940958 (or 378781940948 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121210221101120 its reverse (21101122012121), we get a palindrome (142311343113241).

The spelling of 121210221101120 in words is "one hundred twenty-one trillion, two hundred ten billion, two hundred twenty-one million, one hundred one thousand, one hundred twenty".