1021101202120 has 64 divisors (see below), whose sum is σ = 2480035968000. Its totient is φ = 377210389248.

The previous prime is 1021101202117. The next prime is 1021101202237. The reversal of 1021101202120 is 212021011201.

It is a self number, because there is not a number n which added to its sum of digits gives 1021101202120.

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, 19109400 + ... + 19162759.

It is an arithmetic number, because the mean of its divisors is an integer number (38750562000).

Almost surely, 2^{1021101202120} is an apocalyptic number.

1021101202120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021101202120 is an abundant number, since it is smaller than the sum of its proper divisors (1458934765880).

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

1021101202120 is a wasteful number, since it uses less digits than its factorization.

1021101202120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38272222 (or 38272218 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1021101202120 its reverse (212021011201), we get a palindrome (1233122213321).

It can be divided in two parts, 1021101 and 202120, that added together give a palindrome (1223221).

The spelling of 1021101202120 in words is "one trillion, twenty-one billion, one hundred one million, two hundred two thousand, one hundred twenty".