1211030021202 has 16 divisors (see below), whose sum is σ = 2456173564992. Its totient is φ = 397991086640.

The previous prime is 1211030021171. The next prime is 1211030021213. The reversal of 1211030021202 is 2021200301121.

It is a super-3 number, since 3×1211030021202³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1421396313 + ... + 1421397164.

It is an arithmetic number, because the mean of its divisors is an integer number (153510847812).

Almost surely, 2^{1211030021202} is an apocalyptic number.

1211030021202 is an abundant number, since it is smaller than the sum of its proper divisors (1245143543790).

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

1211030021202 is a wasteful number, since it uses less digits than its factorization.

1211030021202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2842793553.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1211030021202 its reverse (2021200301121), we get a palindrome (3232230322323).

The spelling of 1211030021202 in words is "one trillion, two hundred eleven billion, thirty million, twenty-one thousand, two hundred two".