1211020021202 has 16 divisors (see below), whose sum is σ = 1834647210240. Its totient is φ = 599474034432.

The previous prime is 1211020021193. The next prime is 1211020021219. The reversal of 1211020021202 is 2021200201121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18674 + ... + 1556402.

It is an arithmetic number, because the mean of its divisors is an integer number (114665450640).

Almost surely, 2^{1211020021202} is an apocalyptic number.

1211020021202 is a deficient number, since it is larger than the sum of its proper divisors (623627189038).

1211020021202 is a wasteful number, since it uses less digits than its factorization.

1211020021202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541657.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1211020021202 its reverse (2021200201121), we get a palindrome (3232220222323).

The spelling of 1211020021202 in words is "one trillion, two hundred eleven billion, twenty million, twenty-one thousand, two hundred two".