1901010002002 has 8 divisors (see below), whose sum is σ = 2852706616956. Its totient is φ = 950107796352.

The previous prime is 1901010001951. The next prime is 1901010002041. The reversal of 1901010002002 is 2002000101091.

It can be written as a sum of positive squares in 2 ways, for example, as 1456682438761 + 444327563241 = 1206931^2 + 666579^2 .

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

It is a super-2 number, since 2×1901010002002² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198596343 + ... + 198605914.

Almost surely, 2^{1901010002002} is an apocalyptic number.

1901010002002 is a deficient number, since it is larger than the sum of its proper divisors (951696614954).

1901010002002 is a wasteful number, since it uses less digits than its factorization.

1901010002002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397204652.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1901010002002 its reverse (2002000101091), we get a palindrome (3903010103093).

The spelling of 1901010002002 in words is "one trillion, nine hundred one billion, ten million, two thousand, two".