211220121141122 has 16 divisors (see below), whose sum is σ = 316855003341240. Its totient is φ = 105601787027328.

The previous prime is 211220121141091. The next prime is 211220121141149. The reversal of 211220121141122 is 221141121022112.

It can be written as a sum of positive squares in 4 ways, for example, as 189308182262761 + 21911938878361 = 13758931^2 + 4681019^2 .

It is a super-2 number, since 2×211220121141122² (a number of 29 digits) contains 22 as substring.

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, 2740624004 + ... + 2740701072.

Almost surely, 2^{211220121141122} is an apocalyptic number.

211220121141122 is a deficient number, since it is larger than the sum of its proper divisors (105634882200118).

211220121141122 is a wasteful number, since it uses less digits than its factorization.

211220121141122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166645.

The product of its (nonzero) digits is 256, while the sum is 23.

Adding to 211220121141122 its reverse (221141121022112), we get a palindrome (432361242163234).

The spelling of 211220121141122 in words is "two hundred eleven trillion, two hundred twenty billion, one hundred twenty-one million, one hundred forty-one thousand, one hundred twenty-two".