1220422520212 has 48 divisors (see below), whose sum is σ = 2547554913792. Its totient is φ = 500653221120.

The previous prime is 1220422520197. The next prime is 1220422520227. The reversal of 1220422520212 is 2120252240221.

It is an interprime number because it is at equal distance from previous prime (1220422520197) and next prime (1220422520227).

It is a super-2 number, since 2×1220422520212² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9968268 + ... + 10089955.

It is an arithmetic number, because the mean of its divisors is an integer number (53074060704).

Almost surely, 2^{1220422520212} is an apocalyptic number.

It is an amenable number.

1220422520212 is an abundant number, since it is smaller than the sum of its proper divisors (1327132393580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220422520212 is a wasteful number, since it uses less digits than its factorization.

1220422520212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20058328 (or 20058326 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 1220422520212 its reverse (2120252240221), we get a palindrome (3340674760433).

The spelling of 1220422520212 in words is "one trillion, two hundred twenty billion, four hundred twenty-two million, five hundred twenty thousand, two hundred twelve".