1202101202021 has 8 divisors (see below), whose sum is σ = 1272873737304. Its totient is φ = 1131335411200.

The previous prime is 1202101202017. The next prime is 1202101202051. The reversal of 1202101202021 is 1202021012021.

It can be written as a sum of positive squares in 4 ways, for example, as 134330313121 + 1067770888900 = 366511^2 + 1033330^2 .

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 1202101202021 - 2² = 1202101202017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202101201987 and 1202101202005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202101202051) 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, 1316840 + ... + 2034273.

It is an arithmetic number, because the mean of its divisors is an integer number (159109217163).

Almost surely, 2^{1202101202021} is an apocalyptic number.

It is an amenable number.

1202101202021 is a deficient number, since it is larger than the sum of its proper divisors (70772535283).

1202101202021 is a wasteful number, since it uses less digits than its factorization.

1202101202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3372231.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1202101202021 its reverse (1202021012021), we get a palindrome (2404122214042).

It can be divided in two parts, 120210 and 1202021, that added together give a palindrome (1322231).

The spelling of 1202101202021 in words is "one trillion, two hundred two billion, one hundred one million, two hundred two thousand, twenty-one".