1210210021002 has 32 divisors (see below), whose sum is σ = 2499724238400. Its totient is φ = 390307794048.

The previous prime is 1210210020941. The next prime is 1210210021003. The reversal of 1210210021002 is 2001200120121.

It is a super-2 number, since 2×1210210021002² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1210210021003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15187627 + ... + 15267102.

It is an arithmetic number, because the mean of its divisors is an integer number (78116382450).

Almost surely, 2^{1210210021002} is an apocalyptic number.

1210210021002 is an abundant number, since it is smaller than the sum of its proper divisors (1289514217398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1210210021002 is a wasteful number, since it uses less digits than its factorization.

1210210021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30454950.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1210210021002 its reverse (2001200120121), we get a palindrome (3211410141123).

The spelling of 1210210021002 in words is "one trillion, two hundred ten billion, two hundred ten million, twenty-one thousand, two".