121021120010 has 32 divisors (see below), whose sum is σ = 249038772480. Its totient is φ = 41479448832.

The previous prime is 121021119983. The next prime is 121021120037. The reversal of 121021120010 is 10021120121.

It is an interprime number because it is at equal distance from previous prime (121021119983) and next prime (121021120037).

It is a super-2 number, since 2×121021120010² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121021119973 and 121021120000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63614 + ... + 496073.

It is an arithmetic number, because the mean of its divisors is an integer number (7782461640).

Almost surely, 2^121021120010 is an apocalyptic number.

121021120010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121021120010 is an abundant number, since it is smaller than the sum of its proper divisors (128017652470).

121021120010 is a wasteful number, since it uses less digits than its factorization.

121021120010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562790.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121021120010 its reverse (10021120121), we get a palindrome (131042240131).

The spelling of 121021120010 in words is "one hundred twenty-one billion, twenty-one million, one hundred twenty thousand, ten".