1202100101021 has 8 divisors (see below), whose sum is σ = 1202954235840. Its totient is φ = 1201246102368.

The previous prime is 1202100101017. The next prime is 1202100101057. The reversal of 1202100101021 is 1201010012021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1202100101021 - 2² = 1202100101017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202100100993 and 1202100101011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202100101071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23026070 + ... + 23078216.

It is an arithmetic number, because the mean of its divisors is an integer number (150369279480).

Almost surely, 2^{1202100101021} is an apocalyptic number.

It is an amenable number.

1202100101021 is a deficient number, since it is larger than the sum of its proper divisors (854134819).

1202100101021 is a wasteful number, since it uses less digits than its factorization.

1202100101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68083.

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

Adding to 1202100101021 its reverse (1201010012021), we get a palindrome (2403110113042).

The spelling of 1202100101021 in words is "one trillion, two hundred two billion, one hundred million, one hundred one thousand, twenty-one".