1021212111002 has 16 divisors (see below), whose sum is σ = 1555159124160. Its totient is φ = 502830422688.

The previous prime is 1021212111001. The next prime is 1021212111043. The reversal of 1021212111002 is 2001112121201.

It is a super-2 number, since 2×1021212111002² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1021212111001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 733502 + ... + 1606377.

It is an arithmetic number, because the mean of its divisors is an integer number (97197445260).

Almost surely, 2^{1021212111002} is an apocalyptic number.

1021212111002 is a deficient number, since it is larger than the sum of its proper divisors (533947013158).

1021212111002 is a wasteful number, since it uses less digits than its factorization.

1021212111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2343205.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1021212111002 its reverse (2001112121201), we get a palindrome (3022324232203).

The spelling of 1021212111002 in words is "one trillion, twenty-one billion, two hundred twelve million, one hundred eleven thousand, two".