220220210021121 has 12 divisors (see below), whose sum is σ = 321245322870420. Its totient is φ = 145359874600800.

The previous prime is 220220210021113. The next prime is 220220210021129. The reversal of 220220210021121 is 121120012022022.

It is a happy number.

220220210021121 is a `hidden beast` number, since 2 + 2 + 0 + 220 + 210 + 0 + 211 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (220220210021113) and next prime (220220210021129).

It can be written as a sum of positive squares in 2 ways, for example, as 197917627622400 + 22302582398721 = 14068320^2 + 4722561^2 .

It is not a de Polignac number, because 220220210021121 - 2³ = 220220210021113 is a prime.

It is a super-2 number, since 2×220220210021121² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220220210021094 and 220220210021103.

It is not an unprimeable number, because it can be changed into a prime (220220210021129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121133227926 + ... + 121133229743.

It is an arithmetic number, because the mean of its divisors is an integer number (26770443572535).

Almost surely, 2^{220220210021121} is an apocalyptic number.

It is an amenable number.

220220210021121 is a deficient number, since it is larger than the sum of its proper divisors (101025112849299).

220220210021121 is a wasteful number, since it uses less digits than its factorization.

220220210021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242266457776 (or 242266457773 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220220210021121 its reverse (121120012022022), we get a palindrome (341340222043143).

The spelling of 220220210021121 in words is "two hundred twenty trillion, two hundred twenty billion, two hundred ten million, twenty-one thousand, one hundred twenty-one".