121011010221000 has 128 divisors (see below), whose sum is σ = 377827756824960. Its totient is φ = 32246234784000.

The previous prime is 121011010220951. The next prime is 121011010221041. The reversal of 121011010221000 is 122010110121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10461274 + ... + 18747273.

It is an arithmetic number, because the mean of its divisors is an integer number (2951779350195).

Almost surely, 2^{121011010221000} is an apocalyptic number.

121011010221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121011010221000 is an abundant number, since it is smaller than the sum of its proper divisors (256816746603960).

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

121011010221000 is a wasteful number, since it uses less digits than its factorization.

121011010221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29209952 (or 29209938 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121011010221000 its reverse (122010110121), we get a palindrome (121133020331121).

The spelling of 121011010221000 in words is "one hundred twenty-one trillion, eleven billion, ten million, two hundred twenty-one thousand".