121000202201020 has 24 divisors (see below), whose sum is σ = 254161609584624. Its totient is φ = 48388426601856.

The previous prime is 121000202200973. The next prime is 121000202201057. The reversal of 121000202201020 is 20102202000121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 728307274 + ... + 728473393.

It is an arithmetic number, because the mean of its divisors is an integer number (10590067066026).

Almost surely, 2^{121000202201020} is an apocalyptic number.

121000202201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121000202201020 is an abundant number, since it is smaller than the sum of its proper divisors (133161407383604).

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

121000202201020 is a wasteful number, since it uses less digits than its factorization.

121000202201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456784829 (or 1456784827 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 121000202201020 its reverse (20102202000121), we get a palindrome (141102404201141).

The spelling of 121000202201020 in words is "one hundred twenty-one trillion, two hundred two million, two hundred one thousand, twenty".