1020213210122 has 4 divisors (see below), whose sum is σ = 1530319815186. Its totient is φ = 510106605060.

The previous prime is 1020213210119. The next prime is 1020213210127. The reversal of 1020213210122 is 2210123120201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 548682414361 + 471530795761 = 740731^2 + 686681^2 .

It is a super-2 number, since 2×1020213210122² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1020213210122.

It is not an unprimeable number, because it can be changed into a prime (1020213210127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255053302529 + ... + 255053302532.

Almost surely, 2^{1020213210122} is an apocalyptic number.

1020213210122 is a deficient number, since it is larger than the sum of its proper divisors (510106605064).

1020213210122 is an equidigital number, since it uses as much as digits as its factorization.

1020213210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510106605063.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1020213210122 its reverse (2210123120201), we get a palindrome (3230336330323).

The spelling of 1020213210122 in words is "one trillion, twenty billion, two hundred thirteen million, two hundred ten thousand, one hundred twenty-two".