1220012012211 has 16 divisors (see below), whose sum is σ = 1762425016704. Its totient is φ = 747695458944.

The previous prime is 1220012012201. The next prime is 1220012012221. The reversal of 1220012012211 is 1122102100221.

It is an interprime number because it is at equal distance from previous prime (1220012012201) and next prime (1220012012221).

It is not a de Polignac number, because 1220012012211 - 2⁵ = 1220012012179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220012012201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 278158321 + ... + 278162706.

It is an arithmetic number, because the mean of its divisors is an integer number (110151563544).

Almost surely, 2^{1220012012211} is an apocalyptic number.

1220012012211 is a deficient number, since it is larger than the sum of its proper divisors (542413004493).

1220012012211 is a wasteful number, since it uses less digits than its factorization.

1220012012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556321090.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1220012012211 its reverse (1122102100221), we get a palindrome (2342114112432).

The spelling of 1220012012211 in words is "one trillion, two hundred twenty billion, twelve million, twelve thousand, two hundred eleven".