1211012102002 has 8 divisors (see below), whose sum is σ = 1818917782956. Its totient is φ = 604706174352.

The previous prime is 1211012101987. The next prime is 1211012102011. The reversal of 1211012102002 is 2002012101121.

It can be written as a sum of positive squares in 2 ways, for example, as 1121186617321 + 89825484681 = 1058861^2 + 299709^2 .

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

It is a super-2 number, since 2×1211012102002² (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, 399936433 + ... + 399939460.

Almost surely, 2^{1211012102002} is an apocalyptic number.

1211012102002 is a deficient number, since it is larger than the sum of its proper divisors (607905680954).

1211012102002 is an equidigital number, since it uses as much as digits as its factorization.

1211012102002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799876652.

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

Adding to 1211012102002 its reverse (2002012101121), we get a palindrome (3213024203123).

The spelling of 1211012102002 in words is "one trillion, two hundred eleven billion, twelve million, one hundred two thousand, two".