1020212190 has 48 divisors (see below), whose sum is σ = 2696050656. Its totient is φ = 267595200.

The previous prime is 1020212189. The next prime is 1020212191. The reversal of 1020212190 is 912120201.

It is an interprime number because it is at equal distance from previous prime (1020212189) and next prime (1020212191).

It is a super-2 number, since 2×1020212190² = 2081665825249192200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020212191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87426 + ... + 98405.

It is an arithmetic number, because the mean of its divisors is an integer number (56167722).

Almost surely, 2^1020212190 is an apocalyptic number.

1020212190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020212190 is an abundant number, since it is smaller than the sum of its proper divisors (1675838466).

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

1020212190 is a wasteful number, since it uses less digits than its factorization.

1020212190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185905 (or 185902 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 1020212190 is about 31940.7606359022. The cubic root of 1020212190 is about 1006.6925070971.

Adding to 1020212190 its reverse (912120201), we get a palindrome (1932332391).

The spelling of 1020212190 in words is "one billion, twenty million, two hundred twelve thousand, one hundred ninety".