1202102081 has 2 divisors, whose sum is σ = 1202102082. Its totient is φ = 1202102080.

The previous prime is 1202102059. The next prime is 1202102087. The reversal of 1202102081 is 1802012021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1021441600 + 180660481 = 31960^2 + 13441^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202102081 - 2¹⁰ = 1202101057 is a prime.

It is a super-2 number, since 2×1202102081² = 2890098826289061122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1202102087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601051040 + 601051041.

It is an arithmetic number, because the mean of its divisors is an integer number (601051041).

Almost surely, 2^1202102081 is an apocalyptic number.

It is an amenable number.

1202102081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202102081 is an equidigital number, since it uses as much as digits as its factorization.

1202102081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1202102081 is about 34671.3438014739. The cubic root of 1202102081 is about 1063.2787056597.

The spelling of 1202102081 in words is "one billion, two hundred two million, one hundred two thousand, eighty-one".